decimal_operators.py

#!/usr/bin/env python

# credit for this goes to the author
# of The Python Standard Library by example
# Jesse Noller, Python Core Developer and PSF Board Member
# Book can be purchased on amazon, it is also
# on the oreilly bookshelf and may be at your
# library. I'm only reprinting the code example
# here because I'm working on this stuff as a
# student of the Python Programming language.
# Thanks Jesse Noller for such a good book.

import decimal

a = decimal.Deciaml('5.1')
b = decimal.Decimal('3.14')
c = 4
d = 3.14

print 'a    =', repr(a)
print 'b    =', repr(b)
print 'c    =', repr(c)
print 'd    =', repr(d)
print

print 'a + b =', a + b
print 'a - b =', a - b
print 'a * b =', a * b
print 'a / b =', a / b
print

print 'a + c =', a + c
print 'a - c =', a - c
print 'a * c =', a * c
print 'a / c =', a / c
print

print 'a + d =',
try:
    print a + d
except TypeError, e:
    print e